Masturbation is not recommended no matter how many weeks pregnant you are. Masturbation is also not allowed at 13 weeks of pregnancy. Sex is more discreet during pregnancy. It is not possible to have intercourse during the first 3 months of pregnancy and also during the last 3 months of pregnancy. During the 4-6 months of pregnancy, sex is allowed in moderation, but if a pregnant woman has special circumstances, she should not have intercourse during the entire pregnancy. Masturbation also belongs to a kind of sexual behavior, and it is a less healthy sexual behavior. If a pregnant woman masturbates during pregnancy, it is easy to increase the probability of vaginal inflammation, in addition to the uterine contractions caused after the stimulation of sexual behavior, there will be an increased risk of miscarriage, so pregnant women must pay attention.